Video 1
Recurrent stereotyped right hemidystonic paroxysms involving the right side of the face, arm, and leg, occurring approximately twice per minute, each lasting around 5 seconds, with twisting movements and a brief sustained abnormal torsional posture, consistent with hemidystonia.
Figure 1
Structural MRI and 18F-FDG PET/CT findings. (A) Axial brain MRI shows a small chronic lacunar infarct in the left basal ganglia, minimal periventricular white-matter change, and age-appropriate cortical atrophy. (B) Brain 18F-FDG PET/CT shows mild asymmetric relative cerebellar hypometabolism, more evident in the left cerebellar hemisphere, with preserved uptake in the basal ganglia and cerebral cortex.